Novel radiographic hip fat thickness ratio correlates with early re-operation following total hip arthroplasty

Sezgin E. A., Ali A. K., Ataoğlu M. B., Orhan Ö., Odluyurt M., Esen E.

HIP INTERNATIONAL, cilt.32, sa.1, ss.62-66, 2022 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32 Sayı: 1
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1177/1120700021991783
  • Dergi Adı: HIP INTERNATIONAL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, CINAHL, Communication Abstracts, EMBASE, MEDLINE, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.62-66
  • Anahtar Kelimeler: Complications, fat thickness, obesity, preoperative risk radiographic measurement, total hip arthroplasty
  • Gazi Üniversitesi Adresli: Evet

Özet

Introduction: Obesity is thought to lead to increased failure rates following total hip arthroplasty (THA). Site-specific fat distribution has been suggested to be a better indicator of risk, compared to body mass index. Fat thickness measurement methods were developed for total knee arthroplasty, however, there is limited data on the methods for THA. The aim of this study was to assess the interobserver and intraobserver reliability of a newly defined radiographic subcutaneous fat thickness ratio and investigate the correlation of this ratio with early failure following THA. Methods: 321 patients who underwent primary THA at a single institution between 2014 and 2017, with at least 1-year of follow-up and a preoperative pelvis anteroposterior x-ray radiograph were included in this study. A high hip fat thickness ratio (HFTR) was arbitrarily defined as > 2. Early failure was defined as revision or re-operation for any reason and death related to operation first year following THA. Results: The HFTR was shown to have excellent intraobserver and interobserver reliability. High HFTR was associated with higher risk of early failure following THA (odds ratio 3.8, [95% confidence interval, 1.2-12.1], p < 0.05). The same association persisted when HFTR was analysed as a continuous variable (p < 0.01) and in multivariate analysis (p < 0.05). Conclusions: HFTR can be used to assess periarticular soft tissue distribution and may be regarded as a useful and reproducible tool for assessing risk of early failure following THA.